Home / 14,760.99-20,378.64-9,723.36

Finding the Fourth Proportional to 14,760.99, 20,378.64 and 9,723.36

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Solution

The fourth proportional to 14,760.99, 20,378.64 and 9,723.36 is: 13,423.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,760.99 : 20,378.64 = 9,723.36 : x
  2. Step 2: Convert to fraction form
    14,760.99/20,378.64 = 9,723.36/x
  3. Step 3: Cross multiply
    14,760.99x = 20,378.64 × 9,723.36
  4. Step 4: Simplify right side
    14,760.99x = 198,148,853.03
  5. Step 5: Solve for x
    x = 198,148,853.03/14,760.99
  6. Step 6: Final answer
    x = 13,423.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.